'use strict'
const path = require('path')
// const defaultSettings = require('./src/settings.js')
const webpack = require('webpack')
const CopyWebpackPlugin = require('copy-webpack-plugin')
const cesiumSource = 'node_modules/cesium/Source'
function resolve(dir) {
  return path.join(__dirname, dir)
}

// const name = defaultSettings.title || '智唐后台管理系统' // 标题

const port = process.env.port || process.env.npm_config_port || 80 // 端口

// vue.config.js 配置说明
// 官方vue.config.js 参考文档 https://cli.vuejs.org/zh/config/#css-loaderoptions
// 这里只列一部分，具体配置参考文档
module.exports = {
  // 部署生产环境和开发环境下的URL。
  // 默认情况下，Vue CLI 会假设你的应用是被部署在一个域名的根路径上
  // 例如 https://www.jeethink.vip/。如果应用被部署在一个子路径上，你就需要用这个选项指定这个子路径。例如，如果你的应用被部署在 https://www.jeethink.vip/admin/，则设置 baseUrl 为 /admin/。
  publicPath: process.env.NODE_ENV === 'production' ? '/' : '/',
  // 在npm run build 或 yarn build 时 ，生成文件的目录名称（要和baseUrl的生产环境路径一致）（默认dist）
  outputDir: 'dist',
  // 用于放置生成的静态资源 (js、css、img、fonts) 的；（项目打包之后，静态资源会放在这个文件夹下）
  assetsDir: 'static',
  // 是否开启eslint保存检测，有效值：ture | false | 'error'
  lintOnSave: false,
  // 如果你不需要生产环境的 source map，可以将其设置为 false 以加速生产环境构建。
  productionSourceMap: false,
  // webpack-dev-server 相关配置
  devServer: {
    host: '0.0.0.0',
    port: port,
    proxy: {
      // detail: https://cli.vuejs.org/config/#devserver-proxy
      ['^' + process.env.VUE_APP_BASE_API]: {
        target: `http://192.168.10.207:8080`,
        changeOrigin: true,
        pathRewrite: {
          ['^' + process.env.VUE_APP_BASE_API]: ''
        }
      }
    },
    disableHostCheck: true
  },
  chainWebpack(config) {
    config.plugins.delete('preload') // TODO: need test
    config.plugins.delete('prefetch') // TODO: need test
    // set svg-sprite-loader
    config.module
      .rule('svg')
      .exclude.add(resolve('src/icons'))
      .end()
    config.module
      .rule('icons')
      .test(/\.svg$/)
      .include.add(resolve('src/icons'))
      .end()
      .use('svg-sprite-loader')
      .loader('svg-sprite-loader')
      .options({
        symbolId: 'icon-[name]'
      })
      .end()

    // set preserveWhitespace
    config.module
      .rule('vue')
      .use('vue-loader')
      .loader('vue-loader')
      .tap(options => {
        options.compilerOptions.preserveWhitespace = true
        return options
      })
      .end()

    config
      // https://webpack.js.org/configuration/devtool/#development
      .when(process.env.NODE_ENV === 'development', config =>
        config.devtool('cheap-source-map')
      )

    config.when(process.env.NODE_ENV !== 'development', config => {
      config
        .plugin('ScriptExtHtmlWebpackPlugin')
        .after('html')
        .use('script-ext-html-webpack-plugin', [
          {
            // `runtime` must same as runtimeChunk name. default is `runtime`
            inline: /runtime\..*\.js$/
          }
        ])
        .end()
      config.optimization.splitChunks({
        chunks: 'all',
        cacheGroups: {
          libs: {
            name: 'chunk-libs',
            test: /[\\/]node_modules[\\/]/,
            priority: 10,
            chunks: 'initial' // only package third parties that are initially dependent
          },
          elementUI: {
            name: 'chunk-elementUI', // split elementUI into a single package
            priority: 20, // the weight needs to be larger than libs and app or it will be packaged into libs or app
            test: /[\\/]node_modules[\\/]_?element-ui(.*)/ // in order to adapt to cnpm
          },
          commons: {
            name: 'chunk-commons',
            test: resolve('src/components'), // can customize your rules
            minChunks: 3, //  minimum common number
            priority: 5,
            reuseExistingChunk: true
          }
        }
      })
      config.optimization.runtimeChunk('single')
    })
  },
  configureWebpack: () => {
    let plugins = []
    if (process.env.NODE_ENV === 'production') {
      plugins = [
        new webpack.DefinePlugin({
          CESIUM_BASE_URL: JSON.stringify('static')
        }),
        new CopyWebpackPlugin([
          {
            from: path.join(cesiumSource, 'Workers'),
            to: 'public/Cesium/Workers'
          }
        ]),
        new CopyWebpackPlugin([
          {
            from: path.join(cesiumSource, 'Assets'),
            to: 'public/Cesium/Assets'
          }
        ]),
        new CopyWebpackPlugin([
          {
            from: path.join(cesiumSource, 'ThirdParty'),
            to: 'public/Cesium/ThirdParty'
          }
        ]),
        new CopyWebpackPlugin([
          {
            from: path.join(cesiumSource, 'Widgets'),
            to: 'public/Cesium/Widgets'
          }
        ])
      ]
    } else {
      plugins = [
        new webpack.DefinePlugin({
          CESIUM_BASE_URL: JSON.stringify('')
        }),
        new CopyWebpackPlugin([
          { from: path.join(cesiumSource, 'Workers'), to: 'Workers' }
        ]),
        new CopyWebpackPlugin([
          { from: path.join(cesiumSource, 'Assets'), to: 'Assets' }
        ]),
        new CopyWebpackPlugin([
          { from: path.join(cesiumSource, 'ThirdParty'), to: 'ThirdParty' }
        ]),
        new CopyWebpackPlugin([
          { from: path.join(cesiumSource, 'Widgets'), to: 'Widgets' }
        ]),
        new CopyWebpackPlugin([
          { from: path.join('static/model'), to: 'Model3d' }
        ]),
        new CopyWebpackPlugin([
          { from: path.join('static/video'), to: 'Video' }
        ])
      ]
    }
    return {
      optimization: {
        usedExports: true,
        splitChunks: {
          maxInitialRequests: Infinity,
          minSize: 0,
          maxSize: 250000,
          cacheGroups: {
            vendor: {
              test: /[\\/]node_modules[\\/]/,
              priority: -10,
              chunks: 'all',
              name(module) {
                const packageName = module.context.match(
                  /[\\/]node_modules[\\/](.*?)([\\/]|$)/
                )[1]
                return `npm.${packageName.replace('@', '')}`
              }
            },
            commons: {
              name: 'Cesium',
              test: /[\\/]public[\\/]Cesium/,
              priority: 10,
              chunks: 'all'
            }
          }
        }
      },
      output: {
        sourcePrefix: ' '
      },
      amd: {
        toUrlUndefined: true
      },
      resolve: {
        alias: {
          vue$: 'vue/dist/vue.esm.js',
          '@': path.resolve('src'),
          cesium: path.resolve(__dirname, cesiumSource)
        }
      },
      node: {
        fs: 'empty',
        Buffer: false,
        http: 'empty',
        https: 'empty',
        zlib: 'empty'
      },
      plugins: plugins
    }
  }
}
